Airlines are moving rapidly toward global industry standards, effective November 1, 2010, that could lead to cancellation of reservations — including already ticketed reservations — without notice to travelers and in violation of the contractual conditions in effect when tickets were sold, and denial of transportation to would-be passengers in violation of airlines’ operating licenses and international aviation treaties that require them to operate as “common carriers”.

We’ve previously noted the impossibility of knowing how the TSA will enforce its Secure Flight passenger surveillance and control scheme, since the enforcement of “Secure Flight” demands for information will, presumably, be carried by airlines acting on secret TSA Security Directives. And in one of their most recent non-responses, the TSA reiterates their claim that all such Security Directives are by definition exempt from disclosure, regardless of whether their disclosure would have any actual effect on safety or security.